Finding the Fourth Proportional to 1,216,617.36, 1,678,373.91 and 787,036.02
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Solution
The fourth proportional to 1,216,617.36, 1,678,373.91 and 787,036.02 is: 1,085,748.70
Step by Step Solution
- Step 1: Write the proportion equation
1,216,617.36 : 1,678,373.91 = 787,036.02 : x - Step 2: Convert to fraction form
1,216,617.36/1,678,373.91 = 787,036.02/x - Step 3: Cross multiply
1,216,617.36x = 1,678,373.91 × 787,036.02 - Step 4: Simplify right side
1,216,617.36x = 1,320,940,722,198.24 - Step 5: Solve for x
x = 1,320,940,722,198.24/1,216,617.36 - Step 6: Final answer
x = 1,085,748.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.